Non-equilibrium statistical physics of interacting particles with diffusive dynamics and particle creation/annihilation

具有扩散动力学和粒子产生/湮灭的相互作用粒子的非平衡统计物理

• 批准号: 2602536
• 金额: --
• 依托单位: University of Cambridge
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2021
• 资助国家: 英国
• 起止时间: 2021 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2602536
• 关键词: Non; equilibrium; statistical; physics; interacting

Janik's project will focus on the non-equilibrium statistical physics of interacting particles where diffusive dynamics is combined with particle creation/annihilation. This broad class of models exhibit a rich phenomenology, and describe a range of physical systems that include populations of interacting organisms (where creation/annihilation would correspond to birth/death), and competition between turbulent and laminar fluid flow (via the connection to the directed percolation universality class). We will focus initially on systems with emergent cyclic dynamics (for example, periodic sequences of population growth and collapse), and combine theoretical and numerical work to improve our fundamental understanding of aspects of their behaviour such as fluctuations, entropy production, and rare event dynamics.

Janik的项目将集中于相互作用粒子的非平衡统计物理，其中扩散动力学与粒子的创建/歼灭相结合。这种广泛的模型表现出丰富的现象学，并描述了包括相互作用生物体种群的一系列物理系统（创造/an灭将与出生/死亡相对应），以及湍流和层流液流量之间的竞争（通过与定向渗透普遍性类别的连接）。我们最初将专注于具有新兴循环动态的系统（例如，人口增长和崩溃的周期序列），并结合了理论和数值工作，以提高我们对其行为方面的基本理解，例如波动，熵产生和罕见的事件动态。